<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function runAsync(x){
            const p=new Promise(resolve=>setTimeout(()=>resolve(x,console.log(x,'111')),1000))
            return p
        }
        function runReject(x){
            const p=new Promise(
                (res,rej)=>setTimeout(
                    ()=>rej(`Error:${x}`,console.log(x,'222')
                    ),
                1000*x))
            return p
        }
        Promise.race([runReject(0),runAsync(1),runAsync(2),runAsync(3)])
            .then(res=>console.log('result:',res))
            .catch(err=>console.log(err,'333'))
    </script>
</body>
</html>